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-rw-r--r--lib/gitlab/ci/pipeline/expression/parser.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/gitlab/ci/pipeline/expression/parser.rb b/lib/gitlab/ci/pipeline/expression/parser.rb
index a55e50eebde..90f94d0b763 100644
--- a/lib/gitlab/ci/pipeline/expression/parser.rb
+++ b/lib/gitlab/ci/pipeline/expression/parser.rb
@@ -8,6 +8,11 @@ module Gitlab
@nodes = []
end
+ ##
+ # This produces a reverse descent parse tree.
+ #
+ # It currently does not support precedence of operators.
+ #
def tree
while token = @tokens.next
case token.type